Cancer patients will have to wait months to be diagnosed after visiting their GP as the NHS here faces a financial meltdown, it was warned yesterday. People at risk of stroke and those with debilitating and life-limiting conditions will also be caught up in the growing crisis. Health chiefs also said the NHS needs a £21million injection or the number of people waiting at least 15 weeks for a first hospital appointment will rise by 20,000. A leading GP claimed the predicted rise in waiting times will be disastrous for sufferers.